SX 195 Performance Engine Mods

[swatski]

The new impeller is a game changer!! Using the biggest shuttle that was provided for the wet wolf adjust a thrust I was able to hit 61 mph @ 8250 rpm with a half tank of fuel, two large adults, and gear. I know that if I drop the shuttle size it will increase the RPM and then increase the top end. It’s going to take a couple more runs with different shuttles to dial in the cone. I very happy with the results!!

Very impressive top speed! How is the hole shot and cavitation?

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[Dean P]

The new impeller is a game changer!! Using the biggest shuttle that was provided for the wet wolf adjust a thrust I was able to hit 61 mph @ 8250 rpm with a half tank of fuel, two large adults, and gear. I know that if I drop the shuttle size it will increase the RPM and then increase the top end. It’s going to take a couple more runs with different shuttles to dial in the cone. I very happy with the results!!

Damn that's impressive. Good job!

 

[Smitty78]

Very impressive top speed! How is the hole shot and cavitation?

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The hole shot is awesome it hooks up, so much than the stock impeller. There’s no cavitation and I think that’s because I made sure that I sealed it back up with Yamabond 5 and I’m sure that the Wet Wolf cone helps too..

 

[DavisAR195]

The hole shot is awesome it hooks up, so much than the stock impeller. There’s no cavitation and I think that’s because I made sure that I sealed it back up with Yamabond 5 and I’m sure that the Wet Wolf cone helps too..

After reading your earlier post, I ordered a tube of yamabond 5 too, now you seriously have me considering a new impeller.

 

[swatski]

The hole shot is awesome it hooks up, so much than the stock impeller. There’s no cavitation and I think that’s because I made sure that I sealed it back up with Yamabond 5 and I’m sure that the Wet Wolf cone helps too..

That really makes me wonder.
It could be the power thing, or the Wet Wolf cone...
I wanted that shiny Solas impeller to work so bad, lol. In a N/A 190 I could not get a Solas to give a decent hole shot without giving up too much on top, and I tried HARD. At the end, I had Impros give one of my OEMs race finish - and boy, did it look better .

But seriously, I hope someone picks this up and tests a Wet Wolf in a N/A 1.8 boat. Maybe that is the trick to get a Solas working there?
I very much doubt it though, the L13s work the same way in principle, I would think it must be the combination of massively more power of the SVHO that permits more agressive pitch (less slippage/cavitation) and the larger surface of the 160mmm impelelr blades, which gives them about 10% bigger surface area (as compared to the 155mm pump), so two big factors.

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[Dean P]

That really makes me wonder.
It could be the power thing, or the Wet Wolf cone...
I wanted that shiny Solas impeller to work so bad, lol. In a N/A 190 I could not get a Solas to give a decent hole shot without giving up too much on top, and I tried HARD. At the end, I had Impros give one of my OEMs race finish - and boy, did it look better .

But seriously, I hope someone picks this up and tests a Wet Wolf in a N/A 1.8 boat. Maybe that is the trick to get a Solas working there?
I very much doubt it though, the L13s work the same way in principle, I would think it must be the combination of massively more power of the SVHO that permits more agressive pitch (less slippage/cavitation) and the larger surface of the 160mmm impelelr blades, which gives them about 10% bigger surface area (as compared to the 155mm pump), so two big factors.

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Are the L13 spring loaded or are they a single bolt on option. Ours are fitted with a solid Al piece with an insert (cone). The cone is attached via a shoulder bolt and spring. Not sure how this all works when under load but maybe this is an improvement?

 

[Crabsitch]

Had a crowd on my 192 this weekend. 4 adults, 5 kids, 3 coolers and full fuel. Still ran 55 mph at 8250 rpm.

My rpms are way up like 86 to 8700 full throttle going 35 well I just got cold air intake try it out this weekend.

 

[Crabsitch]

Hi Everyone,

So, I went ahead and purchased the Fizzle Factory Y1000 intercooler and HKS blow off valve for my SVHO. The install went really well and I also removed the stock air box and went with a K&N air filter. In order to make good use of the new mods, I also went with the Maptuner X with the Stage 1 plus tune from Riva Racing.

One of the cool things I did, was to find a better way than tapping a hole in the Intake manifold for the vacuum line to the blowoff valve. I used a 1/4 brass tee and spliced into the map sensor vacuum line. It worked great and I’m looking forward to taking it out for a test run this weekend.

Previously, I was topping out at 53mph and I’m curious what my new top speed is....

Here are some photos of the install.

@SamCF was the one who inspired me after seeing the mods that he’s done..

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Thanks for the links I got my filter and sleeve yesterday I’ll have it in before the weekend, hoping it helps. Checked my compression it’s all good, don’t no why it’s so slow.

 

[swatski]

Are the L13 spring loaded or are they a single bolt on option. Ours are fitted with a solid Al piece with an insert (cone). The cone is attached via a shoulder bolt and spring. Not sure how this all works when under load but maybe this is an improvement?

This shows the design and install of the L13 in a Yamaha pump. Those are solid cones, very robust design.

https://jetboaters.net/threads/lucky-13-l13-anti-cavitation-cone-install-2016-ar240.12099/

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[Dean P]

This shows the design and install of the L13 in a Yamaha pump. Those are solid cones, very robust design.

https://jetboaters.net/threads/lucky-13-l13-anti-cavitation-cone-install-2016-ar240.12099/

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They look it! The bolt on the end (in the picture), is that a shoulder bolt or a shcs?

 

[swatski]

They look it! The bolt on the end (in the picture), is that a shoulder bolt or a shcs?

I wouldn't know the difference... It's just a Stainless Steel Socket Head Cap Screw, M8 Thread, 80MM Length, 1.25MM Pitch

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[Dean P]

I wouldn't know the difference... It's just a Stainless Steel Socket Head Cap Screw, M8 Thread, 80MM Length, 1.25MM Pitch

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Ok, Thx! Like I said, mine is similar to yours but mine is held on the a should bolt and a spring. The spring allows the cone to move outward. Not sure what the reasoning is. But they work. Thanks again for sharing.

 

[Chris D]

What spacers should I install on the L13? 2017 AR195

 

[swatski]

What spacers should I install on the L13? 2017 AR195

Most of the time all three (gold, blue, and red - 10mm?) seem to be a good start. If you lose to many RPM on top, start taking some spacers off.

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[Crabsitch]

Yes, it’s serves as a cold air intake and has less restriction than the stock airbox. Here’s a link to the two items you would need for this mod. It’s around $40.00 dollars to complete this mod.

Amazon.com: K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 5.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001BL: Automotive

Buy K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 5.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001BL: Air Filters - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Amazon.com: HPS AJ400-300 6061 T6 Aluminum Joiner Tubing with Bead Roll, 16 Gauge, 4" Length, 3" OD, 0.065" Wall Thickness : Automotive

Buy HPS AJ400-300 6061 T6 Aluminum Joiner Tubing with Bead Roll, 16 Gauge, 4" Length, 3" OD, 0.065" Wall Thickness: Gauge Sets - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Thanks for the info, so it dropped my rpms down from 8800 to 8400, still can’t get over 35

 

[swatski]

Thanks for the info, so it dropped my rpms down from 8800 to 8400, still can’t get over 35

Sounds like you are severely "under-proped" (pitch too low) if those are real numbers.
Are you at high elevation?

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[Crabsitch]

Thanks for the info, so it dropped my rpms down from 8800 to 8400, still can’t get over 35

No I’m in NJ

 

[Crabsitch]

My rpms are way up like 86 to 8700 full throttle going 35 well I just got cold air intake try it out this weekend.

What’s your mods if you don’t mind me asking?

 

[swatski]

What’s your mods if you don’t mind me asking?

If you are asking me, most of my mods are listed in the signature, as far as performance I try to keep my pump really well maintained, that's the key.
The RIVA Maptuner X is great but limited in what it can do to the power in N/A boats.
Ribbon delete. Cobra fins and fangs, trim tabs, RideSteady.

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[Crabsitch]

Ok so what do you do for your pump?